Laureta R, Baldo DE, Nunag JD, Gasga K, Ebron MP. Problem Tree Analysis for Farm Communities along Bicol River Basin, Camarines Sur, Philippines. apjsafe [Internet]. 2022 May 30 [cited 2025 Sep. 13];10(1):15-21. Available from: https://ojs.bakrie.ac.id/index.php/APJSAFE/article/view/136